<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
		*{
			margin: 0; 
			padding: 0;
		}
		#app{
			width: 500px;
			height: 200px;
			margin: 0 auto;
			margin-top: 100px;
			text-align: center;
			font-size: 36px;
			
		}
		</style>
	</head>
	<body>
		<div id="app">
			欢迎登录院务系统
		</div>
	</body>
</html>



